13933270691 has 4 divisors (see below), whose sum is σ = 13936384584. Its totient is φ = 13930156800.

The previous prime is 13933270619. The next prime is 13933270699. The reversal of 13933270691 is 19607233931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13933270691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13933270699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1550225 + ... + 1559186.

It is an arithmetic number, because the mean of its divisors is an integer number (3484096146).

Almost surely, 2^13933270691 is an apocalyptic number.

13933270691 is a deficient number, since it is larger than the sum of its proper divisors (3113893).

13933270691 is an equidigital number, since it uses as much as digits as its factorization.

13933270691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113892.

The product of its (nonzero) digits is 183708, while the sum is 44.

The spelling of 13933270691 in words is "thirteen billion, nine hundred thirty-three million, two hundred seventy thousand, six hundred ninety-one".